JPH0514763U - Water supply control device - Google Patents

Abstract

(57) [Summary] [Purpose] To allow water to flow even manually. [Configuration] The main valve 36 is seated on the valve seat 38. Main valve 3
The back pressure chamber 52 is provided on the back pressure side of 6, and the communication holes 58, 62, 64, 65 and the water chamber 60 for the starting water passage are provided. In addition to the solenoid type starting valve 86 for opening and closing the starting water channel, a bypass starting water channel 66 and a manual on-off valve (starting plug) 68 are provided. The main valve 36 can be closed and opened by opening and closing the starting plug 68. [Effect] Water can flow even when there is a power outage or controller failure. Water can be continuously supplied when cleaning urinals.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water supply control device. Specifically, the present invention relates to a water supply control device preferably used for automatic cleaning of urinals and the like.

[0002]

[Prior Art]

 As shown in FIGS. 5 and 6, in order to perform automatic cleaning of the urinal 10, an automatic cleaning device 14 is embedded as a water supply control device in the wall 12 on which the urinal 10 is installed, and a sensor installed in the automatic cleaning device 14 is installed. The human body is sensed and the flush water is automatically supplied to the urinal 10.

The automatic cleaning device includes a box 16 having an open front surface, which is embedded in the wall surface 12, a cover 18 for covering the front surface of the box 16, a valve device 19 provided in the box 16, and the like. .. A human body detection sensor 17 is provided on the cover 18, and a controller (not shown) that operates the valve device 17 based on a detection signal of the sensor 17 is installed in the box 16. This valve device 19 includes a main valve that opens and closes a water channel, a valve seat on which the main valve is seated, a back pressure chamber for applying back pressure to the main valve, and the back pressure chamber on the downstream side of the valve seat. It is provided with a start-up water channel for communication and a solenoid-type start-up valve for starting the main valve provided in the start-up water channel. In this valve device, when the solenoid type start valve is opened, the main valve separates from the valve seat to allow water to flow, and when the solenoid type start valve is closed, the main valve sits on the valve seat to stop water. ..

Reference numeral 20 is a box mounting opening provided on the wall surface 12, and 21 is a water supply pipe.

[0005]

[Problems to be solved by the device]

 The conventional automatic cleaning device has a problem that the main valve cannot be opened when the sensor 17, the controller or the solenoid type start valve has a failure. In addition, when trying to check the piping by continuously flowing water into the urinal during the urinal installation work, there was an inconvenience such as having to wait until the electrical wiring work for the controller was completed. Furthermore, it was difficult to continuously flush water when cleaning the urinal.

[0006]

[Means for Solving the Problems]

 The water supply control device of the present invention includes a valve seat provided in a water channel, a main valve that can be seated on the valve seat from the upstream side of the water channel, and a main valve that is provided on the side opposite to the valve seat of the main valve. A back pressure chamber separated from the water passage by a small hole penetrating the main valve so that the back pressure chamber communicates with the water passage upstream of the valve seat; and A water supply system having a start water passage for communicating a downstream water passage with the back pressure chamber for starting a main valve, and a solenoid type start valve provided in the start water passage for opening and closing the start water passage. The control device is characterized in that a bypass starting water passage bypassing the starting valve is provided and a manual opening / closing valve is provided in the bypass starting water passage.

[0007]

[Action]

 In such a water supply control device of the present invention, even if the solenoid-type start valve remains closed, the start-up water channel is opened and the main valve is opened by opening the manual start-up valve. You can

[0008]

【Example】

 2 is a perspective view of an automatic cleaning device as a water supply control device according to an embodiment, FIG. 1 is a horizontal sectional view of the automatic cleaning device, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. The drawing is a sectional view taken along line IV-IV in FIG.

A box 22 is fitted into the box mounting opening 20 of the wall surface 12 of the urinal. The box 22 has a rectangular parallelepiped shape, and the front surface is open. A square (square in this embodiment) cover 24 is mounted on the front surface of the box 22. A water inlet 26 is provided on one side surface of the box 22 and an outflow port 28 is provided on the other side surface thereof, and a water channel 30 connects them. The water passage 30 is provided with a water stopcock 32, a strainer 34, a main valve 36, and a valve seat 38 on which the main valve 36 is seated, from the upstream side.

As shown mainly in FIG. 4, the valve seat 38 has a cylindrical shape, and the main valve 36 abuts on the tip end surface of the valve seat 38 to close the valve. The main valve 36 is a disc-shaped member having a larger diameter than the valve seat 38, and the water supply pressure is always applied to the outer edge portion protruding from the outer periphery of the valve seat 38.

The main valve 36 has a structure in which a disc 40 and a diaphragm 42 are superposed on each other, and a stator 44 is fixed to the disc 40. A plurality of legs 46 extend from the stator 44. The leg 46 slidably contacts the inner peripheral surface of the tubular valve seat 38, and guides the main valve 36 when it moves in the seating direction and in the opposite direction. The outer peripheral edge of the diaphragm 42 is sandwiched by blocks 48, 50 forming the water channel 30.

A back pressure chamber 52 is formed on the back side of the main valve 36 (on the side opposite to the valve seat 38). A coil spring 54 is arranged in the back pressure chamber 52 and biases the main valve 36 in the seating direction. The main valve 36 is provided with a small hole 56 that connects the back pressure chamber 52 and the water passage 30.

A starting water passage that connects the water passage 30 downstream of the valve seat 38 and the back pressure chamber 52 is provided so as to bypass the main valve 36. This starting water channel has a communication hole 58, a water chamber 60, and communication holes 62, 64, 65.

In the present embodiment, further, in the starting water channel, a bypass starting water channel 66 for manual starting is provided between the water chamber 60 and the communication hole 64, and this bypass starting water channel 66 is an opening / closing valve for manual starting ( It can be closed by a needle 70 at the tip of the starter stopper 68. The starter plug 68 is screwed into the block 50, and is threaded so that the needle 70 can be in a closed state in which the needle 70 is seated at the one end 72 of the communication hole 64 and in an open state in which the needle 70 is separated from one end of the communication hole 64. ..

The water chamber 60 is surrounded by a cylinder 74 and a plunger 76 made of a magnet. A ring-shaped magnet 78 and a coil 80 are arranged on the outer circumference of the cylinder 74. An iron core 82 is fixedly arranged in the cylinder 74, and a compression coil spring 84 is interposed between the iron core 82 and the plunger 76. The cylinder 74, the plunger 76, the magnet 78, the coil 80, the iron core 82, and the coil spring 84 constitute a solenoid type start valve 86. The solenoid type start valve 86 is arranged in front of the main valve 36. The solenoid type start valve 86 is controlled by the controller 88. A human body detection signal is input to the controller 88 from a human body detection sensor 90.

When the automatic cleaning device configured as described above is in the water-stop state, the main valve 36 is pushed by the vane 54 and seated on the valve seat 38. Further, the back pressure chamber 52 is filled with water, and the water supply pressure transmitted to the back pressure chamber 52 through the small hole 56 presses the main valve 36 in this seating direction, and the main valve 36 is closed. It is strongly pressed against 38.

In this state, the plunger 76 of the solenoid type start valve 86 is pushed by the spring 84 and the magnetic force of the magnet 78 to contact the end surface of the communication hole 62, thereby closing the start water channel.

When the coil 80 is energized in the positive direction and excited, the plunger 76 is attracted to the iron core 82, and the plunger 76 retreats to the iron core 82 tightly against the biasing force of the spring 84 and the like. To do.

When the plunger 76 retracts in this manner, the water chamber 60 and the communication hole 62 communicate with each other. Then, the water pressure in the back pressure chamber 52 passes through the starting water passage (communication holes 58, 62, 64, 65 and the water chamber 60) and flows out to the water passage 30 on the downstream side of the valve seat 38. As a result, the water pressure that pushes the main valve 36 to the left in FIG. 4 exceeds the pressure of the spring 54 that urges it in the opposite direction, and the main valve 36 moves to the left in FIG. That is, the main valve 36 separates from the valve seat 38, and the main valve 36 opens. As a result, water flows from the inlet 26 toward the outlet 28, and the urinal is cleaned. When the plunger 76 moves backward until it comes into contact with the iron core 82, the magnet 78 urges the plunger 76 in the backward direction. Since the biasing force of the magnet 78 in the backward direction is larger than the biasing force of the spring 84 in the forward direction, the plunger 76 maintains the retracted state even when the power supply to the coil 80 is stopped.

While the plunger 76 is retracting in this way, the main valve 36 separates from the valve seat 38, and water continues to flow through the urinal.

In this state, when a reverse current is applied to the coil 80, in addition to the biasing force of the vane 84, the magnetic force generated from the coil 80 acts on the plunger 76 in the forward direction. Since the resultant force in the forward direction is larger than the urging force of the magnet 78 in the backward direction, the plunger 76 moves forward and contacts the end surface of the communication hole 62 to close the communication hole 62. Then, the water supply passes through the small holes 56 little by little and flows into the back pressure chamber 52 to be stored, and the main valve 36 is gradually moved in the seating direction. Finally, the main valve 36 is seated on the valve seat 38 and the water is stopped.

This automatic cleaning device can open and close the main valve 36 even manually. That is, when the needle 70 is retracted by turning the starter plug 68 in a direction in which the solenoid type start valve 40 is closed, the water chamber 60 and the communication hole 64 are opened by the bypass start water channel 66, and the back start channel 66 is opened. The water in the pressure chamber 52 flows out to the downstream side of the valve seat 38 via the bypass activation water passage 66. As a result, the main valve 36 is closed. When the starter plug 68 is rotated in the opposite direction to close the bypass starter water passage 66 with the needle 70, the main valve 36 gradually moves in the seating direction due to the water passing through the small hole 56, and finally the main valve 36 closes and stops. To be watered.

In the present embodiment, the back pressure chamber 52 is defined by the diaphragm 42, but a cylinder-shaped bore is provided, and a piston-shaped main valve is slidably inserted into the bore, and the piston-shaped main valve is inserted. A back pressure chamber may be defined on the head side of the main valve.

FIG. 7 is a horizontal sectional view of an automatic cleaning device as a water supply control device according to another embodiment, and FIG. 8 is a sectional perspective view showing its water channel structure.

In the present embodiment, a generator 92 is provided at the outlet 28, the power generated by the generator 92 is stored in the battery, and the solenoid type start valve 86, the controller 88, and the sensor 90 are operated. ing.

Further, in this embodiment, the communication hole 64 of the starting water channel is configured to flow out to the generator 92 via the rubber hose 96. Further, in this embodiment, the water flowing out from the generator 92 is guided to the water supply pipe 21 on the front side of the automatic cleaning device via the rubber hose 98.

The other structure is similar to that of the embodiment shown in FIGS. 1 to 4, and the same reference numerals denote the same parts.

Also in this embodiment, the main valve 36 can be opened and closed manually by rotating the starter plug 68 to open and close the bypass starter water channel 66.

Although the above embodiments relate to an automatic cleaning device for urinals, it is obvious that the present invention can be applied to a water supply control device other than urinals. It can also be applied to a water supply control device that activates a solenoid-type activation valve by means other than a human body detection sensor (for example, a manual switch).

[0030]

[Effect of the device]

 As described above, according to the water supply control device of the present invention, the main valve can be opened and closed even manually. Therefore, water can be supplied to the urinal or the like even when there is a power failure, when the battery is discharged, or when the controller or the solenoid-type start valve is out of order. In addition, water leakage can be checked and the flow rate can be adjusted by passing water through a urinal, etc., even during installation work in which electrical wiring work has not been completed. Also, when cleaning urinals, etc., it is convenient to allow water to drain.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an automatic cleaning device as a water supply control device according to an embodiment.

FIG. 2 is a perspective view of an automatic cleaning device.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a side view showing a conventional example.

FIG. 6 is a front view showing a conventional example.

FIG. 7 is a horizontal sectional view showing another embodiment.

FIG. 8 is a cross-sectional perspective view showing another embodiment.

[Explanation of symbols]

 10 Urinal 22 Box 30 Waterway 36 Main valve 38 Valve seat 68 Manual open / close valve (starting plug) 86 Solenoid start valve

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masanori Miyata 1-1, Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A valve seat provided in a water channel, a main valve that can be seated on the valve seat from the upstream side of the water channel, and a main valve that is provided on the opposite side of the valve seat of the main valve and is provided by the main valve. A back pressure chamber, a small hole penetrating the main valve so as to connect the back pressure chamber and a water channel upstream of the valve seat, and a downstream side of the valve seat. In a water supply control device comprising a starting water passage for starting a main valve that connects the water passage and the back pressure chamber, and a solenoid type starting valve for opening and closing the starting water passage, which is provided in the starting water passage, A water supply control device comprising: a bypass starting water channel that bypasses the starting valve; and a manual on-off valve provided in the bypass starting water channel.